Admissions Contact

Our Team, Our Opening Hours and How to Reach Us

Greetings from the Principal

Dear visitors

A very warm welcome to SIS Rotkreuz-Zug, a private bilingual day school with approximately 120 students, from kindergarten through to the third year of secondary school. The school community is characterised by a personal, vibrant and nurturing multicultural environment and represents close to thirty nationalities. The bilingual educational concept of SIS Swiss International School has been successfully implemented here since 2012. Please take some time to explore our website and discover the many exciting facets of our school, and do not hesitate to contact us. I look forward to welcoming you and your family to SIS Rotkreuz-Zug!

Get to Know Our School Management Team

Portrait of Stefanie George
Stefanie George


More about Stefanie George

Stefanie George


Stefanie George took over the position of principal at SIS Rotkreuz-Zug in 2023 after working as principal at SIS Schönenwerd and vice-principal as well as a teacher at SIS Zürich-Wollishofen.


Prior to that, she taught German at the Zurich International School for seven years and managed the German department there. At the same time, she completed her further training to become a school principal. Before that, she worked at other international schools.


Stefanie George grew up in Stuttgart in the south of Germany in an international family and completed her teacher training there. She then raised her two children in England and Germany with her English husband. She has now been living in Switzerland for many years and feels very much at home here.


Every day she is delighted to see how quickly the children become comfortable in the bilingual world and enjoys supporting children on their learning journey.

Portrait of Samuel Windsor
Samuel Windsor

Head of Secondary School

More about Samuel Windsor

Samuel Windsor

Head of Secondary School

Samuel Windsor joined the teaching team at SIS Rotkreuz-Zug in 2019 and began his role as Head of Secondary in August 2021.

He was born in England where he attended the University of Chester. There, he received a bachelor's degree in primary education with a special focus on the teaching and resourcing of scientific investigations in the primary and secondary classrooms. Before joining SIS, he was teaching in public schools in the UK.

Samuel Windsor is a dedicated teacher who strives to create an inclusive environment in which all children can develop according to their needs and learning styles. He is passionate about working with children from all age groups and contributing to their journey through education.

Portrai of Suzy Letheren
Suzy Letheren

Head of Primary School

More about Suzy Letheren

Suzy Letheren

Head of Primary School

Suzy Letheren joined the SIS Rotkreuz-Zug team in August 2016 and became Head of Primary in August 2021.

She was born in England and attended Kingston University where she received her Bachelor of Education, majoring in primary education with English, drama and physical education.

Prior to teaching at SIS, Suzy Letheren worked extensively in the private and public systems in the UK for over 11 years before moving to Switzerland in 2010.

Suzy Letheren is a passionate practitioner who believes that education should be fun. Finding opportunities for all students, not just those she has the privilege of teaching, to shine, achieve well and feel valued is incredibly important to her.


Education Is a Valuable Resource, Which Is Why We Value Transparency


Education Is a Valuable Resource, Which Is Why We Value Transparency

SIS Swiss International School Rotkreuz-Zug is a private educational institution. We offer high-quality education as a service – and we are committed to offering this service in a transparent way.


Learn more about the school fees

Two primary school girls sit at the desk in class and write something.

Teaching and Supervision Hours

At our day school, students are supervised between the hours of 7:30 a.m. and 6 p.m.


The exact lesson and supervision times vary between the different year levels. 

Holiday Calendar 23/24

The school adheres to the official school holiday calendar of the canton of Zug.


Start of academic year 21 August 2023  
Autumn break 9 October to 20 October 2023  
Christmas break 25 December 2023 to 5 January 2024  
Winter break 5 February to 16 February 2024  
Spring break 15 April to 26 April 2024  
Summer break 8 July to 16 August 2024  


You are invited! Have a look at our upcoming events.

No events found.

SIS Rotkreuz-Zug

SIS Swiss International School

Suurstoffi 41c
6343 Rotkreuz

Phone: +41 41 757 57 11




Office Opening Hours

Monday to Friday: 7:30 a.m. to 12:15 p.m. and 1:15 p.m. to 4:30 p.m.

You Might Also Be Interested in This